There is probably little danger of the extensive spread in most portions of our country of any introduced tropical disease. Yellow fever, perhaps, might be considered an exception, but we know better how to protect ourselves from that than was formerly the case, and the late experience in New Orleans shows that even if introduced it can be controlled by an efficient health administration. The habits of our people, as a rule, are not such as to favor the virulent spread of such disorders as plague, leprosy, etc., though constant vigilance against their invasion is certainly advisable. Where large numbers of orientals congregate, however, there is a possibility that they may bring unwelcome diseases which may get out of hand in such communities if overlooked or neglected. Thus, it is not entirely satisfactory to hear of an outbreak of beriberi among Japanese laborers in Nebraska, and if this disease is